The Federal Communications Commission has issued a citation to owners of an office building in downtown Los Angeles, Calif. after discovering that fluorescent lights in the building are interfering with Verizon Wireless’s 700 MHz network. According to the FCC citation, the interference stems from the ballast, which limits the current through the tube of the fluorescent lamp. A … [Read more...]
European Commission Releases New EMF Exposure Report
A European Commission health committee has released a new updated preliminary study on the health effects of exposure to electromagnetic fields. Published by the Scientific Committee on Emerging and Newly Identified Health Risks (SCENIHR), “Potential Health Effects of Exposure to Electromagnetic Fields” is an update to a 2009 study and aims to take into account technological … [Read more...]
European Government Group Says No to Satellite and Wi-Fi Spectrum Sharing
The intergovernmental coordinating body for European state telecommunications and postal organizations has concluded that wireless devices and satellite radars cannot successfully coexist in the same part of radio spectrum, the head of the body’s technical committee announced Jan. 28. Space News reports the European Conference of Postal and Telecommunications Administrations … [Read more...]
‘Superlens’ Could Lift Restrictions on Wireless Charging
Scientists at Duke University have developed a new method of transmitting power wirelessly over much greater distances than previously achieved, bringing us closer to the possibility of a society where mobile electronic devices can be charged virtually anytime, anywhere. While the idea of wirelessly transferring power to an electronic device is not a new concept, experimental … [Read more...]
Signal and Spectrum Analyzer Features 500 MHz Bandwidth
Rohde & Schwarz has announced the availability of the new R&S FSW-B500 hardware option for all analyzers of the R&S FSW family, enabling measurements in a frequency range up to 67 GHz for applications including research and development, radar and satellite and testing of wireless connections such as WLAN or Beyond 4G (5G). According to the company, the large … [Read more...]
IEC 60794-1-20 ed1.0: Optical Fiber Cales – Part 1-20: Generic Specification – Basic Optical Cable Test Procedures – General and Definitions
From the International Electrotechnical Commission webstore: "IEC 60794-1-20:2014 applies to optical fiber cables for use with telecommunication equipment and devices employing similar techniques, and to cables having a combination of both optical fibers and electrical conductors. The object of this standard is to define test procedures to be used in establishing uniform … [Read more...]
RF MEMS Technology May Increase Antenna Efficiency
A technology often used in satellite and defense applications may drastically improve smartphone performance in the near future by increasing antenna efficiency, according to new research from scientists at the University of California San Diego School of Engineering. Antennas in many modern smartphones do not function optimally in 3G and 4G/LTE wireless environments, say the … [Read more...]
RF Shielding Tent Attains -98.9 dB in 800-2,400 MHz Cellular Band
Select Fabricators, Inc, a provider of RF portable fabric shielding solutions, has achieved IEEE 299 -20061 certification for its Select-A-Shield portable tent enclosure via an independent testing laboratory. Test results include -98.9 dB average RF signal shielding at commonly-used cellular and Wi-Fi frequencies of 800 – 2400 MHz and minimum signal attenuation of -85 dB over a … [Read more...]
Ferrite Circulators and Isolators for Use in Wireless Infrastructures and DAS
Pasternack Enterprises, Inc., a manufacturer of RF and microwave products, has released new RF isolaters and circulators for use in wireless infrastructures and distributed antenna systems. According to the company, the new ferrite circulators and isolators cover many of the common communications bands including UHF, AMS, Tetra, Cellular, PCS, UMTS and LTE … [Read more...]
EMI/RFI Shielding Silicones Meet MIL-DTL-83528 Specifications
Elasto Proxy, a supplier of specialty seals and custom insulation, has released new EMI/RFI shielding silicones that meet the MIL-DTL-83528 specification for electrically-conductive elastomeric gaskets with shielding. Aerospace, military, electronics, and communications equipment customers who need EMI/RFI conductive silicone compounds can chose ultra-thin sheets and rolls … [Read more...]
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